| Effects of drought on chlorophyll fluorescence parameters in flowering of soybean |
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| DOI：10.7606/j.issn.1000-7601.2008.02.12 |
| Key Words: drought stress chlorophyll fluorescence soybean drought-resistant |
| Author Name | Affiliation | | SUN Haifeng | Xinjiang Agricultural Reclamation Academy of Science,Shihezi,Xinjiang 832003,China；College of Agriculture Shihezi University/Key Laboratory of Oasis Ecology Agriculture of Xinjiang Bingtuan,Shihezi, Xinjiang 832003,China | | ZHAN Yong | Xinjiang Agricultural Reclamation Academy of Science,Shihezi,Xinjiang 832003,China | | WEI Lingji | College of Agriculture Shihezi University/Key Laboratory of Oasis Ecology Agriculture of Xinjiang Bingtuan,Shihezi, Xinjiang 832003,China | | LIU Shengli | Xinjiang Agricultural Reclamation Academy of Science,Shihezi,Xinjiang 832003,China | | ZHANG Hengbin | Xinjiang Agricultural Reclamation Academy of Science,Shihezi,Xinjiang 832003,China | | LIN Hairong | College of Agriculture Shihezi University/Key Laboratory of Oasis Ecology Agriculture of Xinjiang Bingtuan,Shihezi, Xinjiang 832003,China | | LEI Ming | College of Agriculture Shihezi University/Key Laboratory of Oasis Ecology Agriculture of Xinjiang Bingtuan,Shihezi, Xinjiang 832003,China |
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| Abstract: |
| Effects of water stress on the chlorophyll fluorescence parameters in flowering period of soybean were studied by using chlorophyll fluorescence dynamics technique.The results indicated that under the condition of drought in flowering,the leaves of the variable to maximum fluorescence (Fv/Fm); the ratio to of variable to minimal fluorescencet (Fv/F0) and non-photochemical quenching coefficient (NPQ) decreased,while the electron transport rate (ERT) raised.The analysis indicated that photosystem Ⅱ was damaged,and the primary light energy conversion of PSⅡ (Fv/Fm), potential activities of PSⅡ (Fv/F0) and heat disseminate which possess photoprotective effect decreased,photosynthetic electron rate transport increased.But parameters varied between different soybean genotypes under bloom water stress.The above results suggested that damage of photosynthetic apparatus was light,more light energy absorbed by Xindadou 1 was converted into chemical energy and the ability of drought resistance was strong.The variation of these chlorophyll fluorescence parameters (Fv/F0 and Fv/Fm) was related to drought tolerance of soybean.It was possible to determine the drought resistance in soybean using chlorophyll fluorescence characters. |
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